Editing Module:UtilitiesGive feedback

local p = {};
	
	-- "Default %hero_name% Build" --> "Default  Build", or "Default Build" with -1 or +1 for spaces
	function p.remove_var(input, spaces)
		-- spaces = 
		-- -1: also remove prefixed character
		-- 0 or nil: no character
		-- 1: postfixed character
		-- Remove text between % and % including the %
	    local result = input:gsub("%%.-%%", "")
	    
	    -- If spaces == -1, remove the character before the removed section
	    if spaces ~= nil and spaces == -1 then
	        result = result:gsub("%s+%s*", "", 1) -- Removes the preceding space or character
	    -- If spaces == 1, remove the character after the removed section
	    elseif spaces ~= nil and spaces == 1 then
	        result = result:gsub("%s+", "", 1) -- Removes the postfixed space
	    end
    
	    -- Trim any extra whitespace
	    result = result:gsub("^%s*(.-)%s*$", "%1")
	    
	    return result
	end

    -- Remove '#' from hashtags, but keep the word (e.g., '#Atlas' becomes 'Atlas')
    function p.remove_hashtag(input, spaces)
        local result = input:gsub("#(%w+)", "%1")
        
        return result
	end

	--round_to_significant_figures(12345.6789, 3)  -- Output: 12300
	--round_to_significant_figures(0.0012345, 2)   -- Output: 0.0012
	--round_to_significant_figures("-98765", 4)      -- Output: -98760
	--round_to_significant_figures("foobar", 4)      -- Output: foobar
	function p.round_to_sig_fig(input_value, n)
		num = tonumber(input_value)
		if num == nil then 
			return input_value
		end
		
	    if num == 0 then
	        return 0
	    end
	
	    -- Calculate the order of magnitude (log10 returns the logarithm base 10)
	    local order_of_magnitude = math.floor(math.log10(math.abs(num)))
	    
	    -- Scale the number to move the significant digits into the integer part
	    local scale = math.pow(10, n - 1 - order_of_magnitude)
	    
	    -- Round the scaled number and then scale it back
	    local rounded_num = math.floor(num * scale + 0.5) / scale
	    
	    return rounded_num
	end
	
	-- If the image exists exists, return it back enclosed in brackets, else return a blank string
	function p.get_image_file(image_file_name, px, link)
		if (px == nil) then px = 15 end --default
		if (link == nil) then link = "" end --default
		
		image_file = mw.title.new(image_file_name)
		if image_file and image_file.exists then
		    image_file_name = "[[" .. image_file_name .. "|" .. px .. "px|link=" .. link .. "]]"
		else
		    image_file_name = ''
		end
		
		return image_file_name
	end
	
	function p.string_endswith(str, ending)
	    return ending == "" or str:sub(-#ending) == ending
	end
	
	-- Add a space before each capital letter that is not the first character
	-- i.e. BulletVelocity > Bullet Velocity
	-- when a string doesn't have localization, it can outputted as add_space_before_cap(unlocalized_key)
	function p.add_space_before_cap(str)
	    local result = str:gsub("(%l)(%u)", "%1 %2")
	    return result:gsub("(%u)(%u%l)", " %1%2")
	end
	
	--Much room for expansion here, currently just replaces spaces with underscores essentially
	--so that it can be used in a url directly
	p.url_encode = function(str)
		if type(str) == 'table' and str.args then
			frame = str
			str = frame.args[1]
		end
		
		if (str == nil) then return "First parameter must be a string" end
		if (str == '') then return '' end
		-- Just replaces spaces with %20
		local result = string.gsub(str, " ", "%%20")
		return result --must assign as local result first to grab just first returned result
	end
	
	--Creates a deepCopy of a table
	function p.deep_copy(orig)
    local orig_type = type(orig)
    local copy
    if orig_type == "table" then
        copy = {}
        for key, value in pairs(orig) do
            copy[p.deep_copy(key)] = p.deep_copy(value)
        end
        setmetatable(copy, p.deep_copy(getmetatable(orig)))
    else  -- For non-table types, simply return the original value
        copy = orig
    end
    return copy
end

-- Hash for color values
local slot_colors = {
	["Weapon"] = {
		hex = "c8761c",
		rgb = "200, 118, 28",
		hsl = "31, 75%, 45%",
		cmyk = "0%, 41%, 86%, 22%"
	},
	["Armor"] = {
		hex = "6f8724",
		rgb = "198, 248, 114",
		hsl = "82, 91%, 71%",
		cmyk = "20%, 0%, 54%, 3%"
	},
	["Tech"] = {
		hex = "ba5ca6",
		rgb = "186, 92, 166",
		hsl = "313, 41%, 55%",
		cmyk = "0%, 51%, 11%, 27%"
	}

}

-- Hash for format configuration
local color_formats = {
	hex = {
		prefix = "#",
		postfix = ""
	},
	rgb = {
		prefix = "rgb(",
		postfix = ")"
	},
	hsl = {
		prefix = "hsl(",
		postfix = ")"
	},
	cmyk = {
		prefix = "cmyk(",
		postfix = ")"
	}
}
function p.get_slot_color(slot, color_format, no_wrap, debug_mode)
	if type(slot) == 'table' and slot.args then
		frame = slot
		slot = frame.args[1]
		color_format = frame.args[2]
		no_wrap = frame.args["no_wrap"]
		debug_mode = frame.args["debug_mode"]
	end
	
	-- Validate arguments
	if slot == nil or slot == "" then return "'slot' parameter must be provided" end
	if color_format == nil or color_format == "" then color_format = "hex" end
	if no_wrap == nil or no_wrap == 'false' or no_wrap == "" then no_wrap = false else no_wrap = true end
	if debug_mode == nil or debug_mode == 'false' or debug_mode == "" then debug_mode = false end
	
	local slot_data = slot_colors[slot]
	if slot_data == nil then return "slot '" .. slot .. "' was not in slots_data map" end
	
	--Retrieve the color
	local color = slot_data[color_format]
	if color == nil then
		return "color_format '" .. color_format .. "' is not in slots_data map"
	end
	
	-- Add prefix and postfix wrapping
	if not no_wrap then
		-- Retrieve prefix and postfix
		prefix = color_formats[color_format]['prefix']
		postfix = color_formats[color_format]['postfix']
		-- Add to color
		color = prefix .. color .. postfix
	end
	
	-- Return result
	if debug_mode then
		return " " .. color
	end
	return color
end

function p.remove_trailing_colon(frame)
    local str = frame.args[1] or ""
    -- Remove trailing colon
    return (str:gsub(":$", ""))
end

function p.process_variables(frame)
    -- Get arguments
    local string_key = frame.args[1] or ''
    local item_name = frame.args[2] or ''
    
    -- Load required modules
    local lang_module = require('Module:Lang')
    local item_data_module = require('Module:ItemData')
    
    -- Get the original text
    local original_text = lang_module.get_string(frame, string_key) or ''
    
    -- Process the text to replace variables with their values
    local processed_text = original_text:gsub("{s:([^}]+)}", function(variable_name)
        -- Get the value from ItemData
        local value = item_data_module.get_prop({args = {item_name, variable_name}})
        
        -- If value exists, remove non-number symbols (but keep + and -)
        if value then
            -- Keep only digits (0-9), plus (+), and minus (-)
            value = value:gsub("[^0-9+.-]", "")
            -- Return empty string if nothing left, otherwise return the filtered value
            return value ~= "" and value or variable_name
        else
            return variable_name -- Fallback to variable name if value not found
        end
    end)
    
    return processed_text
end

function p.contains(tbl, str)
    for _, v in ipairs(tbl) do
        if v == str then
            return true
        end
    end
    return false
end

-- Expands multiple of the same template in a single preprocess call
-- Example:
-- expand_teampltes(frame, 'HeroIcon', {hero_atlas: {'Abrams'}, hero_bebop: {'Bebop'})
-- Returns {hero_atlas: <abrams_icon_template>, hero_bebop: <bebop_icon_template>, ...}
function p.expand_templates(frame, template_name, args_map)
    local keys = {}
    local strings = {}
    for key, args in pairs(args_map) do
        keys[#keys + 1] = key
    end
    for i, key in ipairs(keys) do
        local args = args_map[key]
        local parts = {"{{", template_name, "|"}
        for j, arg in ipairs(args) do
            if j > 1 then parts[#parts + 1] = "|" end
            parts[#parts + 1] = arg
        end
        parts[#parts + 1] = "}}"
        strings[i] = table.concat(parts)
    end
    local expanded = mw.text.split(
        frame:preprocess(table.concat(strings, "\x01")), "\x01"
    )
    local result = {}
    for i, key in ipairs(keys) do
        result[key] = expanded[i]
    end
    return result
end

-- Helper function
-- Returns true or false depending if the page exist
function p.page_exists(title_text)
    local title_obj = mw.title.new(title_text)
    return title_obj and title_obj.exists or false
end

return p